Android Open Source - FindYourWords Dialog Save File

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License

The source code is released under:

Apache License

Java Source Code

/**
 * Class DialogSaveFile is a Dialog used in the first Activity to save a txt file
 * In this dialog the user can write the name of the file e save it in the SDcard
 * /*from  w ww . ja  va  2s.  c o m*/
 * @author Sara Craba
 * @version 1.0
 */

package dialog;

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStreamWriter;
import com.sara.find_your_words.R;
import android.app.AlertDialog;
import android.app.Dialog;
import android.app.DialogFragment;
import android.content.DialogInterface;
import android.os.Bundle;
import android.os.Environment;
import android.util.Log;
import android.view.LayoutInflater;
import android.widget.EditText;
import android.widget.Toast;

/**
 * @see DialogFragment() on Android
 */
public class DialogSaveFile extends DialogFragment 
{
  private EditText fileName;
  private String fileNameString;
  private Dialog myDialog;
  private File file;
  private String textFile= new String();

  /**
   * @see onCreateDialog() on Android Dialogs class
   */
  @Override
  public Dialog onCreateDialog(Bundle savedInstanceState) 
  {
    AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
    
    //text to save sent by SetWord activity 
    textFile= getArguments().getString("text");
    
    //get the layout inflater
    LayoutInflater inflater = getActivity().getLayoutInflater();

    // inflate and set the layout for the dialog
    // pass null as the parent view because its going in the dialog layout
    builder.setView(inflater.inflate(R.layout.dialog_insert_filename, null))
      //button Ok save the file
      .setPositiveButton("Ok", new DialogInterface.OnClickListener()
      {
        @Override
        public void onClick(DialogInterface dialog, int id)
        {
          //take file name from edit text in the dialog
          myDialog = (Dialog) dialog;
          fileName= (EditText) myDialog.findViewById(R.id.editFileName);
          fileNameString=fileName.getText().toString();
          //if edit text is null save with default name
          if(fileName.getText().toString().length()==0)
          {
            fileNameString="find_your_words";
          }
          
          //create a .txt file
          file = new File(Environment.getExternalStorageDirectory(), fileNameString+ ".txt");
          try
          {
            file.createNewFile();
            FileOutputStream fOut = new FileOutputStream(file);
            OutputStreamWriter myOutWriter =  new OutputStreamWriter(fOut);
            myOutWriter.append(textFile);
            myOutWriter.close();
            fOut.close();
                  } catch (Exception e) 
                  {
                    Log.e("DialogSaveFile", e.getMessage());
                  }
          
          Toast.makeText(getActivity().getApplicationContext(), 
                  "correctly saved "+ fileNameString+ ".txt", Toast.LENGTH_SHORT).show();
        }
      })
      
      //button Cancel: annul action, return to activity
      .setNegativeButton("Cancel", new DialogInterface.OnClickListener() 
      {
        public void onClick(DialogInterface dialog, int id) 
        {
          DialogSaveFile.this.getDialog().cancel();
        }
      });
    return builder.create();
  }
}

Java Source Code List

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